Buderus Logano G315 Installation And Service Instructions Manual page 15

The directional arrow ( Fig. 15, [3]) must point in the direction of the
rear boiler section.
▶ Position the intermediate section so that the upper and lower hubs
( Fig. 15, [2 and 4]) fit onto the nipples in the rear section.
▶ Pound first intermediate section onto the rear section using a
wooden or a rubber mallet ( Fig. 15, [1]).
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4
Fig. 15 Pound intermediate section in place
Before the nipples are inserted in the next intermediate
section, the part-assembled boiler block must be
compressed using the boiler assembly tool.
NOTICE: The boiler can be damaged by pulling the boiler
sections together incorrectly or due to excessive
compression.
▶ Ensure that the nipples are positioned straight in the
boiler hubs after being pounded in and that they have
not been compromised.
▶ Never compress more than one nipple joint at a time.
▶ Stop compressing the sections when the boiler hubs
meet.
NOTICE: Assembly tool damage due to loose screw
connections of the tie rods.
▶ Always check the tie rods before each use and
retighten as necessary. The tie rod is correctly
positioned if it is fully inserted and no threads are
showing ( Fig. 16, [2]).
▶ Always keep the threads ( Fig. 16, [1]) clean.
Dirty threads may damage the assembly tool during
compression.
Logano G315 – 6 720 817 939 (2017/02)
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3
Fig. 16 Boiler assembly tool 2.3
6 720 642 621-11.1o
▶ Push the compression units (Fig. 17, [3 and 4]) onto the tie rods
(Fig. 4, [4], page 11).
▶ Push a tie rod through the upper and lower hubs on the boiler.
Fig. 17 Using the boiler assembly tool
▶ Push mating flanges (Fig. 18, [1]) onto the tie rods (Fig. 18, [3]) and
secure each with wedge (Fig. 18, [2]).
▶ Hold the tie rod in the center of the boiler hubs and slightly draw
together the assembly tools using the clamping nut.
Boiler block assembly
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CAUTION: Danger of accident from material fatigue.
Improperly used or poorly maintained assembly tools
may fail.
▶ Never work directly in front of the assembly tool
while it is being tensioned.
▶ Ensure that no one is standing in front of the
assembly tool.
NOTICE:
▶ Only boiler assembly tools size 2.3 may be used
(Fig. 4, page 11 and Fig. 17, [1 and 2]).
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7
2
720 42 23-18.1o
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4
720 42 21-12.1o
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